SMPS Controller 16-Pin SO T/R

The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The GreenChip III combines a controller for Power Factor Correction (PFC) and a flyback controller. Its high level of integration allows the design of a cost-effective power supply with a very low number of external components.

• Integrated PFC and flyback controller
• Dual boost PFC with accurate maximum output voltage
• Adjustable PFC switch-off delay
• On-chip high voltage start-up current source
• Valley/zero voltage switching for both flyback and PFC
• PFC is switched off when a low load is detected at the flyback output
• Frequency reduction to maintain high efficiency at low output power levels
• Continuous mode protection by means of demagnetization detection
• Accurate OverVoltage Protection (OVP) for both converters
• Mains voltage independent OverPower Protection (OPP)
• Open control loop protection for both converters
• General purpose input for latched protection
• Adjustable output overpower protection for flyback converter